JA Sensei version 5.1.6 is online with a new multi selection mode that will give you more flexibility in managing your lists and items.

Multi-selection mode

1. Press Kanji/Vocabualry > Learn in the main menu
2. At the top of the screen, a new button appears in the menu. Press it to enter the multi-selection mode
   
3. Once in the selection mode, tap items in your list. You can also let your finger pressed on an item for a second to select a range of items (give it a try to see how it works).
4. After selecting a few items, you can add them to another list or remove them from the list (if it's a personal list).
   
5. Another button also allows you to manually define when you want to review these items again in the quiz.
   

Personal list options

1. Press Kanji/Vocabualry > Learn in the main menu
2. Tap the name of the selected list at the top of the screen to select a personal list
3. A new button appears to the right of each list. Press it down.
   
4. New options appear for your personal list: rename, merge with another list, and delete.